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A227545 as a simple table

n a(n)
0 1
1 1
2 2
3 10
4 40
5 296
6 1936
7 17872
8 164480
9 1820800
10 21442816
11 279255296
12 3967316992
13 59837670400
14 988024924160
15 17009993230336
16 318566665977856
17 6177885274406912
18 129053377688043520
19 2786107670662021120
20 64136976817284448256
21 1525720008470138454016
22 38350749144768938770432

[1,1,2,10,40,296,1936,17872,164480,1820800,
 21442816,279255296,3967316992,59837670400,
 988024924160,17009993230336,318566665977856,
 6177885274406912,129053377688043520,
 2786107670662021120,64136976817284448256,
 1525720008470138454016,38350749144768938770432]

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Last modified April 18 13:29 EDT 2024. Contains 371780 sequences. (Running on oeis4.)